ICP-AES Determination of Elements in Elsholtzia rugulosa Hemsl. after Microwave Assisted Digestion

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Abstract:

In this paper, the contents of these elements including Cu, Fe, Mn, Zn, Al, Cd, Pb, Ti and As were determined by ICP-AES technique, which elements originated from E. rugulosa from different places. Detection limits ranged 0.0029 ug/ml-1 and 0.079 ug/ml-1, the relative standard deviations for all these elements were lower than 2%, and recovery rates ranged 93% and 105.8%. The results showed that there were rich elements in E. rugulosa from different places; contents of Fe and Al were highest; contents of Mn, Zn and Ti were moderately high; and contents of Cu, As, Cd and Pb were lowest. Finally, concentrations of elements within E. rugulosa from different places were different, which may have some relations with the environment where it grew. As a result, the determining method which elements of E. Rugulosa are determined by ICP-AES is rapid, accurate and convenient.

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1136-1139

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March 2014

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